With the QD Sling Thing, you can quickly unsling your AR-15, M-16, or M4 rifle by using a dovetail sling mount with quick detach capabilities. The Sling Thing is a rail sling adapter that provides the flexibility of quickly detaching the sling by the use of a rugged 1 1/4" QD sling swivel which is included in the package. It is manufactured from tough 7075 billet aluminum, alloy and is Type III black hard-coat anodized per mil-spec.